:root{--blue:#005bd8;--ink:#153049;--muted:#52677b;--line:#d6e0e9}*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;font:14px/1.55 "Microsoft YaHei",sans-serif;color:var(--ink);background:#edf2f7}button,input{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,canvas:focus-visible{outline:3px solid #dba600;outline-offset:3px}::selection{background:#c9e3ff;color:#102b44}.workspace{display:grid;grid-template-columns:234px 1fr;height:100%;min-height:580px}aside{background:white;border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:auto}.intro{padding:22px 20px 12px}.intro h2{font-size:19px;margin:0 0 7px}.intro p{color:var(--muted);font-size:12px;margin:0}nav{padding:0 12px 14px;display:flex;flex-direction:column;gap:4px}nav button{padding:11px 13px;border:0;background:transparent;text-align:left;border-radius:5px;color:#2b4b66;display:flex;align-items:center;justify-content:space-between;gap:10px}nav button:hover{background:#edf3fa}nav button.active{background:#005bd8;color:#fff;font-weight:600}nav small{font-size:11px;opacity:.85;font-weight:400}.details{border-top:1px solid var(--line);padding:17px 20px}.details h3{font-size:15px;margin:0 0 8px}.details p{font-size:12px;color:var(--muted);margin:0 0 13px}.related{display:block;background:#f3f7fb;border:1px solid #dae4ee;border-radius:5px;width:100%;padding:7px;margin-bottom:8px;color:#254b71;text-align:left}.related img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;border-radius:2px;margin-bottom:6px}.related span{font-size:12px}.legend{font-size:11px;color:var(--muted);padding:8px 20px;display:flex;align-items:center;gap:5px;flex-wrap:wrap;margin-top:auto}.key{width:7px;height:7px;display:inline-block;border-radius:50%}.key.blue{background:var(--blue)}.key.gray{background:#9aabb9}.model-note{font-size:11px;color:var(--muted);padding:2px 20px 18px;margin:0}.stage{position:relative;overflow:hidden;min-width:0;background:#edf2f7}canvas{display:block;width:100%;height:100%;touch-action:none}.tools{position:absolute;left:18px;right:18px;top:18px;display:flex;justify-content:space-between;gap:8px;pointer-events:none}.view-buttons{display:flex;background:#fff;border:1px solid #c9d7e3;border-radius:5px;overflow:hidden;pointer-events:auto}.view-buttons button{padding:8px 13px;border:0;border-right:1px solid #dbe4ec;background:#fff;color:#214465;font-size:13px;white-space:nowrap}.view-buttons button:last-child{border-right:0}.view-buttons button:hover{background:#edf3fa}.view-buttons button[aria-pressed=true]{background:#005bd8;color:#fff}.switches{position:absolute;top:69px;left:18px;right:18px;display:flex;flex-wrap:wrap;gap:8px 15px;align-items:center;background:#fff;border:1px solid #d0dde8;border-radius:5px;padding:9px 12px;max-width:fit-content}.switches label{display:flex;align-items:center;gap:5px;font-size:12px;color:#254b71;white-space:nowrap}.switches input[type=checkbox]{accent-color:#005bd8;margin:0}.cut input[type=range]{width:85px;accent-color:#005bd8}.cut output{font-size:11px;font-variant-numeric:tabular-nums}.bottom{position:absolute;bottom:16px;left:18px;right:18px;display:flex;align-items:center;gap:15px;font-size:11px;color:#3c5870;background:#fff;border:1px solid #cfdae5;border-radius:5px;padding:8px 12px}.bottom #modeLabel{font-weight:600;color:#153049}.bottom button{margin-left:auto;padding:5px 10px;border:1px solid #bcd0e3;background:#edf4fc;color:#0052bd;border-radius:4px;font-size:12px;white-space:nowrap}#hotspots{position:absolute;inset:0;pointer-events:none}.hotspot{position:absolute;display:flex;align-items:center;gap:6px;border:1px solid #aec5df;background:#fff;color:#17456f;padding:5px 10px;border-radius:4px;white-space:nowrap;font-size:12px;transform:translate(-50%,-50%);pointer-events:auto;box-shadow:0 3px 12px #102b4414}.hotspot::before{content:"";width:6px;height:6px;border-radius:50%;background:#005bd8}.hotspot:hover{background:#005bd8;color:#fff}.hotspot:hover::before{background:#fff}.loading{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;background:#edf2f7;z-index:3;padding:24px;text-align:center}.loading[hidden]{display:none}.loading h3{font-size:19px;margin:15px 0 5px}.loading p{font-size:13px;color:#52677b;max-width:42ch}.loading progress{width:220px;accent-color:#005bd8}.loading button{border:0;background:#005bd8;color:#fff;padding:9px 16px;border-radius:4px}.loading-symbol{width:38px;height:38px;border:3px solid #c7daed;border-top-color:#005bd8;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#selection{position:absolute;bottom:74px;left:50%;transform:translateX(-50%);background:#17334e;color:#fff;border-radius:5px;font-size:12px;padding:7px 12px;pointer-events:none}#selection:empty{display:none}.stage:fullscreen{background:#edf2f7}.stage:fullscreen canvas{height:100vh}@media(max-width:800px),(pointer:coarse){.workspace{grid-template-columns:1fr;grid-template-rows:auto 1fr;min-height:700px}aside{border-right:0;border-bottom:1px solid var(--line);display:block;overflow:visible}.intro{padding:12px 15px 8px}.intro h2{font-size:16px;display:inline;margin-right:10px}.intro p{display:inline}nav{padding:0 12px 11px;flex-direction:row;overflow-x:auto;gap:5px}nav button{padding:7px 10px;white-space:nowrap;font-size:12px;border:1px solid #d6e0eb}nav small{display:none}.details,.legend,.model-note{display:none}.tools{top:12px;left:12px;right:12px}.switches{top:57px;left:12px;right:12px;gap:7px 12px;padding:8px;max-width:calc(100% - 24px)}.switches .cut{width:100%}.bottom{left:12px;right:12px;bottom:12px;padding:6px 8px;gap:8px}.bottom>span:nth-child(2){display:none}.hotspot{font-size:11px;padding:4px 7px}.view-buttons button{font-size:12px;padding:7px 10px}}@media(prefers-reduced-motion:reduce){.loading-symbol{animation:none}}

[hidden]{display:none!important}aside,nav{min-width:0;max-width:100%}@media(max-width:800px),(pointer:coarse){.workspace{grid-template-columns:minmax(0,1fr);width:100%}}

.room-group{font-size:11px;color:#52677b;padding:12px 12px 3px;font-weight:700;letter-spacing:.04em}.room-group:first-child{padding-top:0}.mobile-space,.touch-mode,.touch-help{display:none}.display-options{position:absolute;top:69px;left:18px;right:18px;z-index:2;max-width:fit-content}.display-options>summary{display:none}.display-options .switches{position:static;max-width:none}.stage canvas{outline-offset:-4px}
@media(max-width:800px),(pointer:coarse){
 .workspace{min-height:0;grid-template-rows:94px minmax(0,1fr)}
 aside .intro{padding:10px 12px 5px}.intro p{display:none}.intro h2{font-size:15px}
 #rooms{display:none}.mobile-space{display:flex;align-items:center;gap:10px;margin:0 12px 10px;font-size:13px;color:#52677b}.mobile-space select{flex:1;min-width:0;height:44px;border:1px solid #bccddd;border-radius:5px;background:#fff;color:#153049;padding:0 10px;font:15px "Microsoft YaHei",sans-serif}
 .tools{left:10px;right:10px;top:10px}.view-buttons button{min-height:44px;padding:8px 11px;font-size:13px}.display-options{left:10px;right:10px;top:65px;max-width:calc(100% - 20px)}.display-options>summary{display:block;list-style:none;cursor:pointer;background:#fff;color:#254b71;border:1px solid #c9d7e3;border-radius:5px;padding:11px 13px;font-size:13px;width:fit-content;min-height:44px}.display-options>summary::-webkit-details-marker{display:none}.display-options[open]>summary{background:#edf4fc}.display-options .switches{margin-top:5px;padding:9px 12px;box-shadow:0 5px 20px #15304912;max-width:100%;gap:4px 14px}.switches label{min-height:40px;font-size:13px}.switches input[type=checkbox]{width:18px;height:18px}.switches .cut{gap:8px}.cut input[type=range]{flex:1;min-width:75px;height:30px}
 .touch-mode{display:block;position:absolute;right:10px;bottom:80px;z-index:2;min-height:44px;padding:10px 15px;background:#005bd8;border:1px solid #005bd8;border-radius:5px;color:#fff;font-size:14px;font-weight:600}.touch-mode[aria-pressed=true]{background:#fff;color:#005bd8}.touch-help{display:block;position:absolute;left:12px;right:12px;bottom:42px;margin:0;text-align:center;font-size:11px;line-height:1.5;color:#284f70;background:#ffffffed;border-radius:4px;padding:6px 8px;pointer-events:none}.bottom{bottom:8px;left:10px;right:10px;min-height:44px;padding:4px 9px}.bottom button{min-height:36px;font-size:12px;padding:6px 9px}.bottom #modeLabel{max-width:62%;font-size:11px}.hotspot{font-size:11px;padding:10px 8px;min-height:42px}.stage:not(.touch-active) .hotspot{pointer-events:none}
 .stage:fullscreen .touch-mode{bottom:88px}.stage:fullscreen .touch-help{bottom:54px}
}

.stage.fullscreen-fallback{position:fixed;inset:0;z-index:100;height:100dvh;width:100vw}

@media(max-width:800px),(pointer:coarse){.touch-mode{bottom:112px}.touch-help{bottom:62px;min-height:34px}.workspace{grid-template-columns:minmax(0,1fr)}}